<template>
  <div class="side-menu-wrapper">
    <slot></slot>
    <Menu ref="menu" v-show="!collapsed" :active-name="activeName" :open-names="openedNames" :accordion="true" :theme="theme" width="auto" @on-select="handleSelect">
      <template v-for="item in menuList">
        <template>
          <side-menu-item v-if="showChildren(item)" :key="`menu-${item.name}`" :parent-item="item"></side-menu-item>
          <menu-item v-else :name="getNameOrHref(item)" :key="`menu-${item.name}`">
            <common-icon :type="item.meta.icon || ''" /><span>{{ showTitle(item) }}</span>
          </menu-item>
        </template>
      </template>
    </Menu>
    <div class="menu-collapsed" v-show="collapsed" :list="menuList">
      <template v-for="item in menuList">
        <collapsed-menu v-if="item.type==='菜单'" @on-click="handleSelect" hide-title :root-icon-size="rootIconSize" :icon-size="iconSize" :theme="theme" :parent-item="item" :key="`drop-menu-${item.name}`">
        </collapsed-menu>
        <Tooltip transfer v-else :content="showTitle(item.children && item.children[0] ? item.children[0] : item)" placement="right" :key="`drop-menu-${item.name}`">
          <a @click="handleSelect(getNameOrHref(item, true))" class="drop-menu-a" :style="{textAlign: 'center'}">
            <common-icon :size="rootIconSize" :color="textColor" :type="item.meta.icon" />
          </a>
        </Tooltip>
      </template>
    </div>
  </div>
</template>
<script>
import SideMenuItem from './side-menu-item.vue'
import CollapsedMenu from './collapsed-menu.vue'
import { getUnion } from '@/libs/tools'
import mixin from './mixin'

export default {
  name: 'SideMenu',
  mixins: [mixin],
  components: {
    SideMenuItem,
    CollapsedMenu,
  },
  props: {
    menuList: {
      type: Array,
      default() {
        return []
      },
    },
    collapsed: {
      type: Boolean,
    },
    theme: {
      type: String,
      default: 'light',
    },
    rootIconSize: {
      type: Number,
      default: 20,
    },
    iconSize: {
      type: Number,
      default: 16,
    },

    activeName: {
      type: String,
      default: '',
    },
    openNames: {
      type: Array,
      default: () => [],
    },
  },
  data() {
    return {
      openedNames: [],
    }
  },
  methods: {
    handleSelect(name) {
      this.$emit('on-select', name)
    },
    getOpenedNamesByActiveName(name) {
      let names = this.$route.matched.map((item) => item.name).filter((item) => item !== name)
      return names
    },
  },
  computed: {
    textColor() {
      return this.theme === 'dark' ? '#fff' : '#495060'
    },
  },
  watch: {
    activeName(name) {
      this.openedNames = this.getOpenedNamesByActiveName(name)
    },
    openNames(newNames) {
      this.openedNames = newNames
    },
    openedNames() {
      this.$nextTick(() => {
        this.$refs.menu.updateOpened()
      })
    },
  },
  mounted() {
    let openedNames = getUnion(this.openedNames, this.getOpenedNamesByActiveName(this.activeName))
    this.openedNames = openedNames
  },
}
</script>
<style lang="less">
@import './side-menu.less';
</style>
